I am new to office 365, so please bear with me.
If I manage different clients and want something like email@example.com, firstname.lastname@example.org, etc. or some other similar email address on each of their domains and really just forward to my email address, does that take an office 365 for that forwarder? that address would never be used to send out. Just for users or apps / hardware that sends out an alert, when it shows in my mailbox with the to line of email@example.com, I'll know which client it came from.
But $4 - $5 / month / client for a forwarder (office 365 essentials license) gets expensive. Is there another solution I don't know about? group mailbox with just me (with an email outside the domain)? are those free? it's a group mailbox, but really just a forwarder? Or do I want a distribution list with just me in it? or something else?